furrow

[1]	groove , channel , flute , score , cut , gash , scratch , plough , harrow
[2]	wrinkle , rut , groove , crease , corrugate , knit , pucker , crinkle
[3]	wrinkle , crease
[4]	chamfer , chase

[1]	groove , channel , rut , trench , track , ditch , gutter , trough , fosse , fissure , sulcus , sulcation , flute , score , cut , gash , scratch , line , wrinkle , crease , corrugation , crow's-feet , (Technical) sulcus
[2]	wrinkle , crease , crinkle , seam , line